/Engine/Source/Runtime/AudioMixer/Public/Components/SynthComponent.h
Implemented by the synth component to create a generator object instead of generating audio directly on the synth component. This method prevents UObjects from having to exist in the audio render thread.
virtual ISoundGeneratorPtr CreateSoundGenerator ( const [FSoundGeneratorInitParams](API\Runtime\Engine\Sound\FSoundGeneratorInitParams) & InParams )